TWI625043B - 雙頻胎壓感測器之天線匹配裝置 - Google Patents

雙頻胎壓感測器之天線匹配裝置 Download PDF

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TWI625043B
TWI625043B TW106105102A TW106105102A TWI625043B TW I625043 B TWI625043 B TW I625043B TW 106105102 A TW106105102 A TW 106105102A TW 106105102 A TW106105102 A TW 106105102A TW I625043 B TWI625043 B TW I625043B
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TW201832465A (zh
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shan-quan You
zi-wen Ke
Jiong Lin
Xiao-Ming Chen
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02Signalling devices actuated by tyre pressure
    • B60C23/04Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0422Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
    • B60C23/0433Radio signals
    • B60C23/0447Wheel or tyre mounted circuits
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02Signalling devices actuated by tyre pressure
    • B60C23/04Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0422Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
    • B60C23/0433Radio signals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02Signalling devices actuated by tyre pressure
    • B60C23/04Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0422Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
    • B60C23/0433Radio signals
    • B60C23/0447Wheel or tyre mounted circuits
    • B60C23/0452Antenna structure, control or arrangement
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02Transmitters
    • H04B1/04Circuits
    • H04B1/0458Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

一種雙頻胎壓感測器之天線匹配裝置,包含有:一微控單元,具有一控制腳位;一雙頻信號單元,受該微控單元的控制來決定發出兩種不同頻率信號中的其中一種;以及一匹配單元,具有一輸入端電性連接於該雙頻信號單元,該匹配單元具有二外接腳位分別電性連接於一二極體的兩端,且該二外接腳位其中之一係電性連於該控制腳位,該匹配單元具有一輸出端,用以電性連接於一天線;其中,該匹配單元在該輸入端及該輸出端之間係提供兩種不同的阻抗可供切換,該微控單元係藉由該控制腳位之接地與否來控制該二極體的工作狀態,進而切換該匹配單元的阻抗。

Description

雙頻胎壓感測器之天線匹配裝置
本發明係胎壓感測器與有關,特別是指一種雙頻胎壓感測器之天線匹配裝置。
目前的胎壓感測器,有使用315MHz頻率或使用433.92MHz頻率兩種規格,主要是為了配合車用主機的接收頻率,使用315MHz的胎壓感測器無法適用於使用433.92MHz頻率的車用主機,反之亦然。因此,如果胎壓感測器可以選擇其使用的頻率而能符合不同的車用主機,則該胎壓感測器在市場上即應較受歡迎。
美國US 2014/0306815 A1號專利,揭露了一種多頻率的胎壓感測器,其在圖2中揭露了使用PLL(鎖相迴路)技術來進行頻率的調整,並以一微控單元(250)來提供相關控制功能,而該PLL(鎖相迴路)(270)依該微控單元(250)的控制來產生一預定頻率的信號之後,依其頻率分別傳送至後端的兩個RF匹配電路(220,225),而由其中匹配的電路將信號向外傳送至一天線(230)以無線的方式傳送出去。在該案的第3圖中則顯示了PLL與兩個匹配電路之間的細部結構,在該案的說明[0026]~[0029]段則揭露了選擇315MHz以及433.92MHz頻率的操作方式及匹配電路的選擇方式。其在[0029]段中,主要揭露了藉由可程式邏輯功能(330)來開啟或關閉第一開關(335)或第二開關(340),藉以選擇匹配電路。
由於天線必須匹配射頻的頻率才能有效的將信號向外輻射,因此,前述習知技術在第2圖中揭露了一種對不同頻率進行天線匹配的技術,其主要利用兩個射頻匹配電路(225)(220)來分別對應不同頻率的信號,進而匹配同一個天線(230),並藉由該PLL(鎖相迴路)(270)來提供信號並選擇某個射頻匹配電路。然而,前述習知技術並沒有揭露以同一個一匹配裝置來把不同頻率的信號匹配在同一個天線上的技術。
本發明之主要目的乃在於提供一種雙頻胎壓感測器之天線匹配裝置,其可藉由同一個匹配裝置來把不同頻率的信號匹配於同一個天線。
為了達成上述目的,本發明提供一種雙頻胎壓感測器之天線匹配裝置,包含有:一微控單元,具有一控制腳位;一雙頻信號單元,具有發出兩種不同頻率信號的能力,該雙頻信號單元電性連接於該微控單元,受該微控單元的控制來決定發出前述兩種不同頻率信號中的其中一種;以及一匹配單元,具有一輸入端電性連接於該雙頻信號單元,用以接收該雙頻信號單元所發出的信號,該匹配單元具有二外接腳位分別電性連接於一二極體的兩端,且該二外接腳位其中之一係電性連於該控制腳位,該匹配單元具有一輸出端,用以電性連接於一天線;其中,該匹配單元在該輸入端及該輸出端之間係提供兩種不同的阻抗可供切換,該微控單元係藉由該控制腳位之接地與否來控制該二極體的工作狀態,進而切換該匹配單元的阻抗。
藉此,本發明藉由該微控單元來控制該二外接腳位之間的開路或通路,即可改變該匹配單元的阻抗,進而達到藉由同一個匹配裝置來把不同頻率的信號匹配於同一個天線的效果。
10‧‧‧雙頻胎壓感測器之天線匹配裝置
11‧‧‧微控單元
14‧‧‧控制腳位
15‧‧‧接地腳位
21‧‧‧雙頻信號單元
31‧‧‧匹配單元
32‧‧‧輸入端
34‧‧‧外接腳位
36‧‧‧二極體
38‧‧‧輸出端
91‧‧‧天線
141‧‧‧電控開關
第1圖係本發明一較佳實施例之方塊示意圖。以及第2圖係本發明一較佳實施例之另一方塊示意圖。
為了詳細說明本發明之技術特點所在,茲舉以下之較佳實施例並配合圖式說明如後,其中:如第1圖所示,本發明一較佳實施例所提供之一種雙頻胎壓感測器之天線匹配裝置10,主要由一微控單元11、一雙頻信號單元21以及一匹配單元31所組成,其中:該微控單元11,具有一控制腳位14。
該雙頻信號單元21,具有發出兩種不同頻率信號的能力,該雙頻信號單元21電性連接於該微控單元11,受該微控單元11的控制來決定發出前述兩種不同頻率信號中的其中一種。
該匹配單元31,具有一輸入端32電性連接於該雙頻信號單元21,用以接收該雙頻信號單元21所發出的信號,該匹配單元31具有二外接腳位34分別電性連接於一二極體36的兩端,且該二外接腳位34其中之一係電性連接於該 控制腳位14,該匹配單元31具有一輸出端38,用以電性連接於一天線91。於本實施例中,該二極體36係為高頻二極體(PIN Diode)或是變容二極體(Varactor Diode)。
其中,該匹配單元31在該輸入端32及該輸出端38之間係提供兩種不同的阻抗可供切換,該微控單元11係藉由該控制腳位14之接地與否來控制該二極體36的工作狀態,進而切換該匹配單元31的阻抗。在實際實施時,係可選用可以直接控制該控制腳位14接地或不接地;又,如第2圖所示,亦可在該微控單元11更增設一接地腳位15,而將該接地腳位15電性連接於該二外接腳位34中未與該控制腳位14電性連接者,該控制腳位14與該接地腳位15之間設置一電控開關141,該電控開關係電性連接於該微控單元11,而受該微控單元11的控制而短路或開路,於短路時造成該控制腳位14接地。
以上說明了本實施例的架構,接下來說明本實施例之操作狀態。
請參閱第1圖,欲使該天線91匹配兩種頻率中的第一種頻率的信號時,係藉由該微控單元11來控制該雙頻信號單元21發出第一種頻率的信號,此時,該微控單元11係不令該控制腳位14接地,而使得該二外接腳位34之間的電流能受該二極體36之作用,進而使該匹配單元31在該輸入端32及該輸出端38之間提供一第一阻抗,進而使該第一種頻率的信號能夠匹配該天線91。欲使該天線91匹配兩種頻率中的第二種頻率的信號時,係藉由該微控單元11來控制該雙頻信號單元21發出第二種頻率的信號,此時,該微控單元11係控制該控制腳位14接地,而使得該二外接腳位34之間的電流不受該二極體36之作用,進而使該匹配單元31在該輸入端32及該輸出端38之間提供一第二阻抗,進而使該第二種頻率的信號能夠匹配該天線91。
由上可知,本發明藉由該微控單元11之控制腳位14的接地與否,即可改變該匹配單元31的阻抗,進而達到藉由同一個匹配裝置來把不同頻率的信號匹配於同一個天線91的效果。

Claims (4)

  1. 一種雙頻胎壓感測器之天線匹配裝置,包含有:一微控單元,具有一控制腳位;一雙頻信號單元,具有發出兩種不同頻率信號的能力,該雙頻信號單元電性連接於該微控單元,受該微控單元的控制來決定發出前述兩種不同頻率信號中的其中一種;以及一匹配單元,具有一輸入端電性連接於該雙頻信號單元,用以接收該雙頻信號單元所發出的信號,該匹配單元具有二外接腳位分別電性連接於一二極體的兩端,且該二外接腳位其中之一係電性連於該控制腳位,該匹配單元具有一輸出端,用以電性連接於一天線;其中,該匹配單元在該輸入端及該輸出端之間係提供兩種不同的阻抗可供切換,該微控單元係藉由該控制腳位之接地與否來控制該二極體的工作狀態,進而切換該匹配單元的阻抗。
  2. 依據申請專利範圍第1項之雙頻胎壓感測器之天線匹配裝置,其中:該微控單元係另外具有一接地腳位,該接地腳位係電性連接於該二外接腳位中未與該控制腳位電性連接者。
  3. 依據申請專利範圍第2項之雙頻胎壓感測器之天線匹配裝置,其中:該控制腳位及該接地腳位之間係設有一電控開關,該電控開關係電性連接於該微控單元,而受該微控單元之控制而短路或開路,於短路時造成該控制腳位接地。
  4. 依據申請專利範圍第1項之雙頻胎壓感測器之天線匹配裝置,其中:該二極體係為高頻二極體(PIN Diode)或是變容二極體(Varactor Diode)。
TW106105102A 2017-02-16 2017-02-16 雙頻胎壓感測器之天線匹配裝置 TWI625043B (zh)

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TW106105102A TWI625043B (zh) 2017-02-16 2017-02-16 雙頻胎壓感測器之天線匹配裝置
EP17166518.5A EP3364543B1 (en) 2017-02-16 2017-04-13 Antenna matching device for dual-frequency tire pressure detector
US15/497,702 US10099520B2 (en) 2017-02-16 2017-04-26 Antenna matching device for dual-frequency tire pressure detector

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TW106105102A TWI625043B (zh) 2017-02-16 2017-02-16 雙頻胎壓感測器之天線匹配裝置

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US10873131B2 (en) 2018-12-19 2020-12-22 Sysgration Ltd. Radio frequency matching device of tire pressure sensor
TWI782311B (zh) * 2020-08-18 2022-11-01 車王電子股份有限公司 胎壓偵測器之無線訊號發射裝置

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DE102019134068B4 (de) 2018-12-19 2024-08-29 Sysgration Ltd. Hochfrequenzanpassungsvorrichtung für einen Reifendrucksensor
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TWI782311B (zh) * 2020-08-18 2022-11-01 車王電子股份有限公司 胎壓偵測器之無線訊號發射裝置
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EP3364543A1 (en) 2018-08-22
US20180229559A1 (en) 2018-08-16
US10099520B2 (en) 2018-10-16
EP3364543B1 (en) 2020-03-18
TW201832465A (zh) 2018-09-01

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